ExecutionProof Adversarial Security Test Series — EP-SEC-001 through EP-SEC-009b

A preregistered adversarial-security series evaluating whether actors, tooling, or attack paths can bypass the ExecutionProof pre-execution governance boundary. The series includes eight initial PASS experiments, one preserved FAIL identifying a direct tool-level execution bypass, and a separately preregistered remediation experiment that passed all eight adversarial cases. The experiments evaluate unsigned actions, expired and replayed proofs, scope violations, forged evidence, privilege escalation, action drift, combined attack vectors, and direct tool invocation outside the enforcement boundary. The EP-SEC-009 failure is preserved in the public record; EP-SEC-009b documents and tests the remediation separately. All experiments were documented and hash-locked before execution, with results published after execution. The release preserves negative findings and remediation history as part of the evidence record. Internal/founder-led experimental corpus; independent academic validation is the next phase.